US2454058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for converting intermittent power to continuous power
Assignee: Individual
•
Filing: 1944-10-19
•
Granted: 1948-11-16
•
Expires: 1964-10-19
Abstract
No abstract record available.
Inventors
- 👤 Russell R Hays
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:44
CPC Classifications
F; F03; F03D; F03D9/00; F03D9/10; F03D9/17; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72; Y02E60/00; Y02E60/16; Y02E70/00; Y02E70/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US254303A
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US320482A
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US1679417A
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DE601536C
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US2116023A
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US2369048A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-16 | 1952-05-17 | 1952-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-16 | 1956-05-17 | 1956-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-16 | 1960-05-17 | 1960-11-16 | $7700.00 | Window Closed / Lapsed |